Sand drier and screen device



March 17, 1931. w, STEELE 1,796,911

SAND DRIER AND SCREEN DEVICE Filed Nov. 16, 1929 2 Sheets-Sheet l Inventor By. Ii

A iiorney March 17, 1931. w, STEELE 1,796,91 1

SAND DRIER AND SCREEN DEVICE Filed Nov. 16, 1929 2 Sheets-Sheet 2 Inventor A ttorney Patented Mar. 17, 1931 UNITED STATES PATENT OFF-ICE SAND DRIER AND SCREEN DEVICE Application filed November 16, 1929.- Serial No. 407,720.

The present invention relates to a device for drying sand and cleaning it on a commercial scale.

The prime object of the invention resides in the provision of a device of this nature which is simple in its construction, inexpensive to build, strong and durable, and thoroughly efficient and reliable in use.

WVith the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing:

Figure 1 is a side elevation of a device embodying the features of my invention,

Figure 2 is a front elevation thereof,

Figure 3 is a horizontal section therethrough, and

Figure l is a vertical transverse section therethrough.

Referring to the drawing in detail it will be seen that I provide a furnace formed of side walls 5 and end walls 6. A suitable grate structure is mounted in the furnace resting on ledges 8 formed on the inner sides of the walls 5 and dividing the interior of the furnace into a firebox F and an ashpit P.

In the front end wall 6 there is formed an opening closed by a hingedly mounted door or the like 9. On the other end wall there is built a chimney structure 10 to provide the desired circulation and draft.

A pair of inclined panels 11 rise upwardly from the ledges 8 and incline inwardly to ward each. other having their upper edges joined. The roof of the furnace is in the form of a hopper 12 formed with a plurality of openings 14 in the trough thereof. The side walls 5 are provided with openings 15 adjacent the lower ends of the panels 11 and outwardly and downwardly inclined screens 16 extend from the side walls at the bottoms of these openings 15.

It will be seen from the above that sand poured into the hopper 12 passes through the opening 14 to slide down on the panels 11 which are heated by the fire in the firebox and then the sand passes through the holes 15 on to the screens 16 which may be of the desired size.

It is preferable to build the structure ontirely of brick except the door, the grate and in this art without a more detailed description thereof.

The present embodiment of the invention has been disclosed in considerable detail merely for the purposes of exemplification since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description. I

It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

1. A sand drier and screen device of the cl'iaracter described comprising a furnace structure including side and end walls and a fire box, a substantially inverted V-shaped baflle mounted on the side walls, a synclinal roof mounted on the side walls having its axis disposed above the apex of the baffle, said synclinal roof constituting a hopper for the reception of the sand. and having a series of longitudinally spaced discharge openings in its axis for the passage of the sand there-- from into the furnace structure.

2. A sand driver and screen device of the character described comprising a furnace structure including longitudinal side walls and a pair of end walls, ledges on the inner sides of the side walls, a grate mounted on the ledges, a substantially inverted V-shaped baffle mounted longitudinally in the furnace structure on the ledges and disposed above the grate, a synclinal roof mounted on the side walls having its axis disposed above the apex of the bafile and parallel therewith, said roof, in conjunction with the end walls, constituting a hopper for the reception of the sand and being provided with a series of spaced discharge openings in its axis for the passage of the sand therefrom into the furnace structure on to the opposite sides of the baffle, the side walls of the furnace structure being provided with a series of outlet openings adjacent the ledges for the passage of the sand from the baffle, and inclined screens mounted on the outer sides of the side walls below the outlet openings in a manner to receive the sand therefrom.

In testimony whereof I affix my signature.

THOMAS VVILLSON STEELE. 

